Question

29. T rtical calculat_ of sulfur oïdes adsorbed (Nas) on the Pceit ble boon Reactiom T-298 K T-600 K -33 +20 -38 +50 Given this information, what can be concluded about the reaction (A) The reaction is endothermic and spontaneous at only (B) The reaction is exothermic and spontaneous at only (C) The reaction is endothermic and spontaneous at both (D) The reaction is exothermic and spontaneous at both 30. Pure A and B have vapor pressures of 100 and 150 torr torr, what is the mole fraction of A in the liquid phase? (A) 0.15 (B) 0.30 (C) 0.35 (D) 0.70 one of the temperatures. one of the temperatures. temperatures temperatures. respectively, and they form an ideal solution when mixed. If a mixture of A and B has a total vapor pressure of 135 31. For H2O(s) at 0°C and 1 atm and H2O(I) at 0°C and1 atm, what must be equal for the two phases to be in equilibrium? H, molar enthalpy (B) μ, chemical potential (A) (C) S, molar entropy (D) 7, molar volume (D) V, molar volume What is true for point X on the typical one-component phase diagram? 2. Temperature (B) μ (gas)> μ (liq) (A) μ(liq)<μ (sol)

Answer 1

29) The negative value for $\Delta G_{rex}$ at both temperature indicates that the reaction is spontaneous at both tem[erature. A decrease in the value of free energy at higher temperature indicates that, the reaction is more favourable at lower tmperature.

Ans- The reaction is exothermic and spontaneous at both temperature.

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